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Finding the Fourth Proportional to 38,657.69, 53,342.63 and 22,736.33

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Solution

The fourth proportional to 38,657.69, 53,342.63 and 22,736.33 is: 31,373.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,657.69 : 53,342.63 = 22,736.33 : x
  2. Step 2: Convert to fraction form
    38,657.69/53,342.63 = 22,736.33/x
  3. Step 3: Cross multiply
    38,657.69x = 53,342.63 × 22,736.33
  4. Step 4: Simplify right side
    38,657.69x = 1,212,815,638.75
  5. Step 5: Solve for x
    x = 1,212,815,638.75/38,657.69
  6. Step 6: Final answer
    x = 31,373.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.